* ini-read - added reading ini file data from stdin if filename specified is "-".
* ini-write - added output to stdout if filename specified is "-".
stdhandle support -
* minIni.c :
  - modified ini_write to support writing to stdout.

* readme.md :
  - added example using stdin to read ini file.
  - misc code cleanup for readability
  - added comments about modified minIni package being used
  - added Documentation header to readme
updated .gitignore to ignore build-date.h since it is automatically generated during build.
removed src/build-date.h from source control, since it is an autogenerated file
and is recreated for every build.